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Sr Staff Photonics Test Engineer

Lightmatter is building next-generation AI data center infrastructure with novel 3D-stacked silicon photonics. The Sr Staff Photonics Test Engineer will architect wafer- and package-level characterization and test strategies, develop automated test systems, and collaborate cross-functionally to drive model validation, new product introduction, and high-volume manufacturing readiness.

Skills

  • Deep understanding of silicon photonics components and circuits
  • Hands-on experience characterizing photonic devices at wafer and package levels
  • Experience with high-speed photonic device test equipment (AWG, DCA, DSO, PNA, LCA)
  • Test system automation experience using Python
  • Experience supporting new product introduction and high-volume production
  • Strong analytical and problem-solving skills
  • Ability to communicate complex technical concepts to mixed audiences

Responsibilities

  • Collaborate with architecture and design teams to define characterization and test approaches for model validation
  • Architect test concepts, platforms, and design-for-test rules during early technology phases
  • Create detailed test plans and drive timely execution of characterization and production tests
  • Define, develop, and deploy wafer- and package-level test setups for silicon photonics products
  • Develop test software for automation, data analysis, and parameter extraction
  • Specify and procure test equipment in partnership with vendors
  • Setup and operate optical and high-speed equipment (tunable lasers, power meters, polarization synthesizers, OBR/OVA, optical switches, AWG, DCA, DSO, PNA, LCA)
  • Partner with silicon, platform validation, reliability, and OSAT teams to ensure manufacturable test flows and post-stress validation
  • Keep current with advances in silicon photonics testability and incorporate best practices

Education

  • Master’s degree in Photonics, Physics, Electrical Engineering or a related field (required)
  • PhD in Photonics, Physics, Electrical Engineering or related field (preferred)

Benefits

  • Comprehensive medical, dental, and vision plans
  • Retirement savings matching program
  • Life, short-term & long-term disability insurance
  • Generous paid time off, paid family leave
  • Training and development opportunities
  • Commuter benefits
  • Flexible hybrid workplace model
  • Equity grants for full-time employees
To read the complete job description, please click on the ‘Apply’ button

Average salary estimate

$236000 / YEARLY (est.)
min
max
$216000K
$256000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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Lightmatter is a team of designers, developers, and strategists that build software applications to help the world's most promising health companies improve the lives of their patients.

4 jobs
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BADGES
Badge Rapid Growth
CULTURE VALUES
Customer-Centric
Empathetic
Transparent & Candid
Growth & Learning
Work/Life Harmony
BENEFITS & PERKS
Maternity Leave
WFH Reimbursements
Fully Distributed
Company Retreats
Medical Insurance
Vision Insurance
Dental Insurance
Unlimited Vacation
Paid Time-Off
Paid Sick Days
Paid Holidays
Learning & Development
Health Savings Account (HSA)
FUNDING
DEPARTMENTS
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$216,000/yr - $256,000/yr
EMPLOYMENT TYPE
Full-time, hybrid
DATE POSTED
August 21, 2025
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